具有多个映射符号的结构

Question

I have these two structs which represent the same entities (one comes from a Json file and the other from a DB)

type DriverJson struct {
    ID            int    `json:"id"`
    Name          string `json:"name"`
}

type DriverOrm struct {
    ID            int       `orm:"column(id);auto"`
    Name          string    `orm:"column(name);size(255);null"`
}

I want to merge them into one Driver struct, how do I merge the mapping notations (orm:, json:)?

Thank you

Answer 1

As mentioned in the documentation of reflect.StructTag, by convention the value of a tag string is a space-separated key:"value" pairs, so simply:

type DriverJson struct {
    ID   int    `json:"id" orm:"column(id);auto"`
    Name string `json:"name" orm:"column(name);size(255);null`
}

For details, see What are the use(s) for tags in Go?